There's the God within and the God without, and you have to attend to the alignment of the two of them.

I would argue that we have a patriotic duty to move toward energy independence and clean energy. It is a matter of national security - energy security, climate security, economic security, job security, everything.

Back in 2007, I met this white guy [director Peter Byck] with a lot of hair and a video camera, at a conference that I happened to be attending for the launch of an organization called Blacks in Green. I had never heard of him and Peter had never heard of me. We just started talking; he liked what I had to say, so he asked me if I'd be willing to be in this documentary he was doing about carbon pollution. I said, "Sure!" It was kind of a no-brainer.

Dirty energy is a finite resource; the more of it we use, the scarcer it becomes.

Reversing global warming will take a World War II level of mobilization. It is the work of tens of millions, not hundreds of thousands.

We need to think bigger, dream bigger, and get bigger.

You put Hillary Clinton up against Donald Trump, I'm scared of the choice no matter what you do.